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13 commits

Author SHA1 Message Date
Gilles Peskine 2146211204 SSL test programs: enable the PSA test external RNG
Currently, MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG is tested with a dummy
insecure implementation of mbedtls_psa_external_get_random. This
function needs to be explicitly enabled at runtime. This needs to
happen when the PSA external RNG is used, which currently is the case
in SSL test programs only when MBEDTLS_USE_PSA_CRYPTO is enabled.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-01-13 23:53:09 +01:00
Gilles Peskine ba74904c48 SSL test programs: support HMAC_DRBG
Support HMAC_DRBG in ssl_client2 and ssl_server2, in addition to
CTR_DRBG. CTR_DRBG is still used if present, but it's now possible to
run the SSL test programs with CTR_DRBG disabled.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-01-13 20:30:03 +01:00
Gilles Peskine 535fb37870 SSL test programs: abstract CTR_DRBG away
In ssl_client2 and ssl_server2, to generate random data, go through a
level of indirection provided by ssl_test_lib. This way the programs
don't depend on a particular choice of RNG implementation, and only
ssl_test_lib.{h,c} explicitly reference CTR_DRBG.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-01-13 20:18:32 +01:00
Gilles Peskine f1cb75fe13 Local cleanups following the code move
No behavior change.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-01-13 20:18:27 +01:00
Gilles Peskine daa94c4ff5 SSL test programs: move RNG common code to ssl_test_lib
This commit is deliberately arranged to minimize code changes.
Subsequent commits will clean up the resulting code.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-01-13 20:13:47 +01:00
Gilles Peskine 8a8492bcd4 SSL test programs: stuff RNG context into a struct
Group the random generation context (entropy and DRBG) into a struct.
This is in preparation for unifying the common RNG-related code of
ssl_client2 and ssl_server2, then generalizing that code to support
methods other than entropy+CTR_DRBG.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-01-13 18:17:32 +01:00
Gilles Peskine c772b1822a Move the declaration of query_config() to a dedicated header file
Declaring query_config() belongs with the query_config program, not in
ssl_test_lib.h, so move the declaration to a new header file
query_config.h.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-01-13 14:19:43 +01:00
Gilles Peskine 504c1a361e ssl_test_lib: move common functions and variables
Move from ssl_*2.c to ssl_test_lib.c:
* Functions that have exactly identical definitions in the two
  programs, and that don't reference the global variable opt which
  has a different type in the client and in the server. Also declare
  these functions in ssl_test_lib.h.

Move from ssl_*2.c to ssl_test_common_source.c:
* Functions that have exactly identical definitions in the two
  programs, but access fields of the global variable opt which
  has a different structure type in the client and in the server.
* The array ssl_sig_hashes_for_test, because its type is incomplete.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-01-06 10:25:35 +01:00
Gilles Peskine 7c818d68be ssl_test_lib: move common type definitions
Move from ssl_*2.c to ssl_test_lib.h:
* Types defined identically in both files.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-01-06 10:25:35 +01:00
Gilles Peskine 7f679c7bf4 ssl_test_lib: move declaration of query_config
Move from ssl_*2.c to ssl_test_lib.h:
* The declaration of query_config(). Also document it.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-01-06 10:25:35 +01:00
Gilles Peskine 67638d6828 ssl_test_lib: move common includes
Move from ssl_*2.c to ssl_test_lib.h:
* Include directives for headers included by both programs.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-01-06 10:25:35 +01:00
Gilles Peskine ab7ce96d7b ssl_test_lib: move initial includes and is-it-supported check
Move from ssl_*2.c to ssl_test_lib.h:
* The inclusion of the config header file (identical).
* The fallback definitions of platform functions (almost identical:
  server2 also had snprintf and the order and whitespace was slightly
  different).
* The compilation guards checking that required options are
  enabled (tweaked to make them common, with MBEDTLS_SSL_{CLI,SRV}_C
  separated out).

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-01-06 10:25:35 +01:00
Gilles Peskine a3ed34fed6 ssl_test_lib.[hc]: new source file for common SSL test code
Create a new source file for code that is shared between ssl_client2.c
and ssl_server2.c. This commit only creates the file; subsequent
commits will populate it.

Add it to the official build systems (make, cmake, VS).

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-01-06 10:25:35 +01:00